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01:17:44 - 12/20/2024
V8 Dakotas
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Xenithar
Dodge Dakota
JOIN HERE
7/31/2009
17:17:01
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 Subject: Alternator part question
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Message:
I have a 1995 Dakota 4x4 with the 5.2L V8 in it. I have had a problem with various things going bad in the truck recently, including four headlight switches being burned up (melted), a multiswitch, the radio, the rear-right speaker (Infiniti), the blower-motor resistor, and even the computer. All except the speaker have been replaced with OEM parts. I will buy a replacement speaker when I get the cash. I also replaced the battery with a brand-new 900A/750A battery.
Now due to the electrical nature of the failures (high voltage and/or amperage) I have bought a brand new alternator. The truck came with a Nippondenso 120A alternator, but now the part number for it is a Bosch alternator. The new Bosch alternator looks identical and is also 120A. I have not put the alternator on yet.
I was preparing to replace the alternator when I saw something that made me worry. There is a black box-like thing on the back of the alternator that has two metal pieces which bolt onto the alternator and three wires running into it. There are two small wires, a blue one and a green one, and one big wire that is black with a white or light gray stripe. What is this box? I am concerned that it is a voltage-regulator of some kind and if so, that it cannot be replaced due to the small wires running into the wiring harness with no detachable connectors or anything. If this is not a regulator, what is it and how do I check it?
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well
Dodge Dakota
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8/01/2009
09:54:35
|  RE: Alternator part question
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Message:
Hey ya Xenithar
Just thought you should know
The voltage regulator is built into your pcm
Over charging issues would not be fault by the alternator
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Xenithar
Dodge Dakota
JOIN HERE
8/01/2009
22:39:00
|  RE: Alternator part question
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Message:
Well that may explain part of the problem! The old PCM died and I replaced it. Funny thing is, I haven't been using my blower since the AC system is clogged (the next and final fix), but the resistor coils had rusted at one spot and burned in two. I replaced the thing, and now the volt-meter reads the right amount of voltage, and my headlight switch hasn't even warmed up yet! How the HECK does the blower-motor resistor affect the headlights and the volt-meter when I am not even running the blower? Odd as heck, but the truck runs GREAT now. Once the AC is fixed (I may replace the compressor, clutch, dryer, and orifice tube for safe measure after a flush) it will be as good as new again.
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